Perhaps you had the same misunderstanding I did. I recommended a change to the description in a more explicit spoiler-flagged post, but I don't think it's too much of a spoiler to provide a hint here. Even though the description says you can't use certain types, the prohibition is not on using the types at all, just on explicitly including literal constants in your code. If you can make a string in some other way than text in quotes, digits, or True or False, your solution will probably be accepted.

I guess it's called Kumite

It takes too much time to compile. Think of a simpler solution. First time I also wrote smth similar.

seriously, the task has no interest since you give away the answer and the setup is all wrong (wrong function, wrong tests, wrong assertion methods, ...)... :x

Using mathematical method to calculate nth digit in digit sequence, and nth digit in square sequence, and then, you know..

brute-force solution should not passes the tests.
You should find a more effective way.

Downvote happens when your kata has serious issues. Just because you worked very hard does not mean the end result will always be good, so there is no point getting mad over this (at worst, it makes you look silly and bad) ;-)

In any case, there is nothing stopping you from making a new kata with the fixed content, provided that you have actually fixed them. The issues below are still dangling though, and if you don't fix them you'll just get another kata retired ;-)

nope, I didn't vote.

errr, yes I could, but I won't since the author is active. ;)

Because that's not the way to solve this kata.

Google that.

Try looking for optional arguments in Python

You're applying some method only to one of the factors. I don't want to spoil it for the others, you could use some parentheses there.

You're not properly formatting num.

You need 300 honor first.